基于視覺識別的對準精度研究
發(fā)布時間：2018-08-02 15:51
【摘要】：為了解決在微小器件裝配系統(tǒng)中相機的光軸與理想位置產生偏角的問題,提出了空間坐標轉換方法進行相機的位置校準,采用螺紋制動的機械方式進行微調,保證了夾持器的軸線和相機的光軸高度平行,以達到高對準精度.通過分析電荷藕合器件圖像傳感器(CCD)實時獲取的零件裝配圖像,提出了基于Canny算子輪廓邊界差值的微距離測量方法,該方法具有非接觸測量的優(yōu)點,能夠有效測量零件裝配的對準精度.進行了相關的實驗驗證,實驗結果表明該微小器件裝配系統(tǒng)的對準精度小于0.1 mm.
[Abstract]:In order to solve the problem of the deflection between the optical axis and the ideal position of the camera in the assembly system of micro devices, a method of space coordinate conversion is proposed to calibrate the position of the camera, and the mechanical method of thread braking is used to fine-tune the camera. The axis of the gripper is parallel to the optical axis of the camera to achieve high alignment accuracy. Based on the analysis of the assembly images obtained by the charge coupled device image sensor (CCD) in real time, a micro-distance measurement method based on the contour difference of the Canny operator is proposed. This method has the advantages of non-contact measurement. Can effectively measure the alignment accuracy of parts assembly. The experimental results show that the alignment accuracy of the assembly system is less than 0.1 mm.
【作者單位】： 沈陽理工大學遼寧省先進制造與裝備重點實驗室;淮海工業(yè)集團有限公司MEMS研究中心;
【基金】：遼寧省科學技術基金資助項目(201102182)
【分類號】：TH-39;TP391.41
，
本文編號：2159930
[Abstract]:In order to solve the problem of the deflection between the optical axis and the ideal position of the camera in the assembly system of micro devices, a method of space coordinate conversion is proposed to calibrate the position of the camera, and the mechanical method of thread braking is used to fine-tune the camera. The axis of the gripper is parallel to the optical axis of the camera to achieve high alignment accuracy. Based on the analysis of the assembly images obtained by the charge coupled device image sensor (CCD) in real time, a micro-distance measurement method based on the contour difference of the Canny operator is proposed. This method has the advantages of non-contact measurement. Can effectively measure the alignment accuracy of parts assembly. The experimental results show that the alignment accuracy of the assembly system is less than 0.1 mm.
【作者單位】： 沈陽理工大學遼寧省先進制造與裝備重點實驗室;淮海工業(yè)集團有限公司MEMS研究中心;
【基金】：遼寧省科學技術基金資助項目(201102182)
【分類號】：TH-39;TP391.41
，
本文編號：2159930
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